Question

Choose the correct statement/s.
(i) The genetic constitution of a plant is unaffected in vegetative propagation.
(ii) Rhizome in ginger serves as an organ of vegetative reproduction.
(iii) Totipotency of cells enables us to micropropagate the plants.

• A. (i) and (ii)
• B. (ii) and (iii)
• C. (ii) only
• D. (iii) only
• E. All of the above

Answer 1

Answer: (E)

All of the above

• Vegetative propagation is a form of asexual reproduction.
• In organisms that reproduce through asexual reproduction, the new plants contain the genetic material of only one parent, resulting in low genetic diversity.
• So, they are essentially clones of the parent plant resulting in zero change in the genetic constitution of a new plant.
• In ginger, the vegetative propagation occurs through the underground stem called rhizome.
• Rhizomes are stems that grow horizontally under the ground. In ginger plants, the stem bears small outgrowths called buds.
• When a cutting of such a stem along with the bud is buried in the moist soil then a new plant develops from these buds.
• Totipotency is the genetic potential of a plant cell to produce the entire plant.
• Totipotency heps in micropropagation as it is in-vitro clonal propagation of plants from shoot tips or nodal explant.

Hence, the answer is "All of the above"